Current order processing time is 5 business days
Characteristics: Perennial 30-45 cm
Seeds per packet: Approx 50
Known as Sea Holly this attractive plant forms clumps of deep green heart-like leaves. It has unique and long lasting deep blue flowers during summer. Great for flower arrangements, may also be cut and dried for winter decoration.
Adaptable to most soil that are well drained in a sunny position.
Although seed can be sown most of the year in Australia seed is generally best sown in spring or autumn, avoid the coldest and hottest months of the year. The optimum germination temperature for germination is around 18-22°C
Cold stratification is recommended.
Cold treatment may not be critical for germination to occur in colder regions but should give increased germination rates.
This can be replicated by cold stratification in the refrigerator for 6-8 weeks. Alternatively over wintering in the garden in cold climates will assist germination.
General note: Seeds of many plants are dormant and require specific conditions or pre-treatment for germination.
Do not be too hasty to discard seed that does not germinate, seeds will often lay dormant until the conditions are similar to their natural requirements for germination to occur. Containers put to one side will often surprise long after they were discarded.